2018 STRO data book contains new and older data for nearly 6900 different tire sizes. In 2018 STRO data book, there have been more than 200 updates. For example, the book contains 30 new passenger car dimensions, 20 new dimensions for heavy vehicles. And all the other chapters are updated with new standard tire sizes.
Among the carmanufactures, there are 40 new car models and existing car models have been updated with new tire dimensions.